Actions happening simultaneously

1. Vocabulary List

2. Grammar & Sentences

ながら — Two Actions at the Same Time

Structure: Verb 1 (masu stem) + ながら + Verb 2

Remove ます from Verb 1, then attach ながら directly. The main action goes in Verb 2.

• 食べながら勉強します。(Tabenagara benkyou shimasu.) — While eating, I study.
• ドーナツを食べながらしゅくだいをします。(Doonatsu wo tabenagara shukudai wo shimasu.) — While eating doughnuts, I do my homework.
• テレビを見ながらポップコーンを食べます。(Terebi wo minagara poppukoon wo tabemasu.) — While watching TV, they eat popcorn.
• 音楽をききながら本を読みます。(Ongaku wo kikinagara hon wo yomimasu.) — While listening to music, she reads.
• 料理しながら歌います。(Ryouri shinagara utaimasu.) — While cooking, she sings.
• コーヒーを飲みながら彼女を待っています。(Koohii wo nominagara kanojo wo matte imasu.) — While waiting for my girlfriend, I am drinking coffee.
• 歩きながらアイスクリームを食べます。(Aruki nagara aisukuriimu wo tabemasu.) — While walking, he eats ice cream.
• 私は音楽をききながら宿題はできません。(Watashi wa ongaku wo kikinagara shukudai wa dekimasen.) — I cannot do my homework while listening to music.

Polite Requests — てください / ないでください

Use these to ask someone to do or not to do something.

• 歩きながら食べないでください。ここに座って食べてください。(Aruki nagara tabenaide kudasai. Koko ni suwatte tabete kudasai.) — Please do not eat while walking. Please sit down here and eat.
• 食べながら話さないでください。(Tabenagara hanasanaide kudasai.) — Please do not talk while eating.

てはいけません — You May Not / Must Not

• 電話しながら運転してはいけません。車を止めてください。(Denwa shinagara unten shite wa ikemasen. Kuruma wo tomete kudasai.) — You may not drive while making a phone call. Please stop the car.

3. Learning Context

• Core rule: Before ながら, use the masu stem — remove ます entirely. Do NOT use the て form or the full masu form.
• Subject omission: In Japanese, the subject can be omitted when it is obvious from context — 音楽をききながら本を読みます can mean "she reads while listening to music" without stating who.
• Cultural note: Eating while walking (歩きながら) or on a local train (電車にのりながら) is often considered bad manners in Japan. Eating on a 新かんせん (shinkansen) is acceptable.
• てはいけません is a firm prohibition ("you must not"), stronger than ないでください (a polite request).

4. Progress Tracker